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#1
New Products release / TuxCon 2026 is approaching!
Last post by olimex - Today at 02:40:20 PMJoin the open-source community on May 16–17 in Plovdiv for a free conference dedicated to Linux, open hardware, and open-source software.
14 Talks and 2 Workshops: May 16
Soldering Workshop : May 17
Free entry.
Whether you're into embedded, IoT, or FOSS—this is the place to be.
More info: https://tuxcon.mobi
#TuxCon #OpenSource #FOSS #Linux #Plovdiv
14 Talks and 2 Workshops: May 16
Soldering Workshop : May 17
Free entry.
Whether you're into embedded, IoT, or FOSS—this is the place to be.
More info: https://tuxcon.mobi
#TuxCon #OpenSource #FOSS #Linux #Plovdiv
#2
A64 / Re: Microphone noise with USB ...
Last post by LubOlimex - Today at 08:43:33 AMThere is some logic behind this happening, what you can easily try is use extension USB cable so that the USB-WIFI adapter is not plugged next to the board and away from the microphone. Using extension cable will help you determine where the distortion comes from empirically.
#3
A64 / Microphone noise with USB WiFi...
Last post by pavelso - Today at 01:55:29 AMHi
i have couple of A64 boards. I use them with microphones and usb WiFi adapters (Ralink)
i have following problems. If i connect USB WiFi adapter with external antenna (not the small dongle with built in antenna), i get extensive digital noise on microphone input. I don't get this noise when USB WiFi adapters with built ion antennas, i don't get this problem. I even tried to use short USB extension to move the adapter a bit further from the board, but the noise is still present.
For power i tried bot battery and external 5V adapter.
The microphone is standard electret capsule connected via shielded cable and 3.5mm jack.
Anybody ever encountered similar problem?
i have couple of A64 boards. I use them with microphones and usb WiFi adapters (Ralink)
i have following problems. If i connect USB WiFi adapter with external antenna (not the small dongle with built in antenna), i get extensive digital noise on microphone input. I don't get this noise when USB WiFi adapters with built ion antennas, i don't get this problem. I even tried to use short USB extension to move the adapter a bit further from the board, but the noise is still present.
For power i tried bot battery and external 5V adapter.
The microphone is standard electret capsule connected via shielded cable and 3.5mm jack.
Anybody ever encountered similar problem?
#4
ESP32 / Re: Board "olimex_esp32-c5-dev...
Last post by LubOlimex - April 27, 2026, 10:52:19 AMThank you for the working version. I am sure people would find it helpful.
If it is not much of a trouble can you test what happens if you change:
"f_flash": "80000000L",
with
"f_boot": "40000000L",
instead.
If it is not much of a trouble can you test what happens if you change:
"f_flash": "80000000L",
with
"f_boot": "40000000L",
instead.
#5
A64 / Re: Debian GNU/Linux 13 (Trixi...
Last post by LubOlimex - April 27, 2026, 08:53:29 AM1. If we could do it, we would but as it is we focused solely on Olimage Linux, the main problem is the audio and video support. They contain some blobs that will never be accepted by mainline and when a customer buys a board with HDMI connector and audio jack he expects to see video output and audio output.
2. Yes, latest image should work with all older revisions of the board.
3. We do that in our images. We read the EEPROM. EEPROM is prepared during testing.
4. There is but maintainers are lazy and it is probably incomplete: https://images.olimex.com/changelog.txt
However, all changes can be seen at the GitHub sources for the u-boot, kernel, etc. All are available. Check chapter 5 of the manual "5. Build information and sources" to find the proper links with sources:
https://raw.githubusercontent.com/OLIMEX/OLINUXINO/master/DOCUMENTS/OLIMAGE/Olimage-guide.pdf
2. Yes, latest image should work with all older revisions of the board.
3. We do that in our images. We read the EEPROM. EEPROM is prepared during testing.
4. There is but maintainers are lazy and it is probably incomplete: https://images.olimex.com/changelog.txt
However, all changes can be seen at the GitHub sources for the u-boot, kernel, etc. All are available. Check chapter 5 of the manual "5. Build information and sources" to find the proper links with sources:
https://raw.githubusercontent.com/OLIMEX/OLINUXINO/master/DOCUMENTS/OLIMAGE/Olimage-guide.pdf
#6
ESP32 / Re: ESP32-POE-ISO-EA-16MB full...
Last post by LubOlimex - April 27, 2026, 08:20:05 AMThese are metal boxes and we don't have CAD models from them, they are manufactured by 3d party manufacturer. We have this plastic box for LIME2 and battery which can be used for LIME too:
https://github.com/OLIMEX/OLINUXINO/tree/master/BOXES/LIME2-PLASTIC-BOX
Also there are many free 3D designs for boxes for LIME board if you search online in yeggi or pritables:
https://www.yeggi.com/q/olimex+a20+olinuxino+lime/
https://www.printables.com/model/1149553-limebox-remix-olimex-olinuxino-lime-a10
https://github.com/OLIMEX/OLINUXINO/tree/master/BOXES/LIME2-PLASTIC-BOX
Also there are many free 3D designs for boxes for LIME board if you search online in yeggi or pritables:
https://www.yeggi.com/q/olimex+a20+olinuxino+lime/
https://www.printables.com/model/1149553-limebox-remix-olimex-olinuxino-lime-a10
#7
A64 / Re: Debian GNU/Linux 13 (Trixi...
Last post by Roman - April 26, 2026, 03:56:21 PMI asked on linux-sunxi mailing list whether the changes could be mainlined. Could you please comment on the following questions?
- Does Olimex work towards or plan mainlining the changes?
- Are the current devicetrees in Olimex's image compatible with all revisions of the board, including backward compatible with the older revisions? Which revisions of A64-OLinuXino are compatible with the current image?
- Assuming that the choice of a devicetree depends on the revision of the board, is there a way to determine the revision of the board at runtime, probably by a difference in hardware?
- Is there a changelog for software changes between revisions of the board in addition to the hardware revision changes log, which is at "HARDWARE/A64-OLinuXino" in Olimex's "OLINUXINO" GitHub repository?
#8
ESP32 / Re: ESP32-POE-ISO-EA-16MB full...
Last post by faraz - April 26, 2026, 11:12:51 AMAre there step files or CAD models for this one as well?
I would like to 3D print them
https://www.olimex.com/Products/OLinuXino/BOXES/BOX-LIME/
I couldnt find them on the website.
I would like to 3D print them
https://www.olimex.com/Products/OLinuXino/BOXES/BOX-LIME/
I couldnt find them on the website.
#9
A64 / Re: Bookworm upgrade availabil...
Last post by mossroy - April 25, 2026, 01:27:30 PMMany thanks for the info. I was not aware of their new image.
I find surprising that it's based on Debian 12 instead of Debian 13. Debian 12 end of regular support is 2 months from now (even if LTS support should extend for 2 more years)
Debian 13 would have given 2 extra years of support. https://www.debian.org/releases/index.en.html
Anyway, I did not test their new image either.
I'll first test if my Debian 13 installations are sustainable. If they are, they would probably be a better fit for my use-case (headless servers): in terms of features (more recent distro), security updates (much more frequent kernel upgrades), and future dist-upgrades (Olimex has never supported in-place dist-upgrades).
The official Olimex image probably has a more complete board support (screens, audio etc), but it's useless in my use-case.
I find surprising that it's based on Debian 12 instead of Debian 13. Debian 12 end of regular support is 2 months from now (even if LTS support should extend for 2 more years)
Debian 13 would have given 2 extra years of support. https://www.debian.org/releases/index.en.html
Anyway, I did not test their new image either.
I'll first test if my Debian 13 installations are sustainable. If they are, they would probably be a better fit for my use-case (headless servers): in terms of features (more recent distro), security updates (much more frequent kernel upgrades), and future dist-upgrades (Olimex has never supported in-place dist-upgrades).
The official Olimex image probably has a more complete board support (screens, audio etc), but it's useless in my use-case.
#10
New Product Ideas / MIPI-HDMI Revision for I2S Sup...
Last post by ramblecube - April 25, 2026, 12:14:27 PMHello there 
I posted in "New Products Release" in December, but I think that was the wrong place to post.
I am interested in adding sound support to the MIPI-HDMI bridge design.
The datasheet for the LT8912B says that pins 58 (I2S DATA) 59 (I2S WS) and 60 (I2S CLK) are for I2S, but the MIPI-HDMI bridge schematic/PCB KiCad files show that they are not connected on the board.
Would it be possible to add a connector for the I2S lines to the board?
Thank you for your amazing work,
-ramblecube
I posted in "New Products Release" in December, but I think that was the wrong place to post.
I am interested in adding sound support to the MIPI-HDMI bridge design.
The datasheet for the LT8912B says that pins 58 (I2S DATA) 59 (I2S WS) and 60 (I2S CLK) are for I2S, but the MIPI-HDMI bridge schematic/PCB KiCad files show that they are not connected on the board.
Would it be possible to add a connector for the I2S lines to the board?
Thank you for your amazing work,
-ramblecube